jQuery: » jQuery 1.2.2: 2nd Birthday Present

Blog » jQuery 1.2.2: 2nd Birthday Present

Posted January 15th, 2008 by John Resig

On the 2nd anniversary of jQuery’s release we’re proud to bring you a brand new release of jQuery. This is primarily a bug fix release for jQuery 1.2. You can view the full list of what was fixed on the bug tracker.

Downloading

jQuery 1.2.2:

If you wish to checkout the full release from the Subversion repository, you can do so by following the following instructions and checking out the source from the following location:

svn co http://jqueryjs.googlecode.com/svn/tags/1.2.2

Important Changes

A lot of hard work was put into this release by Brandon Aaron and David Serduke. David is a new addition to the jQuery core development team and has been making significant contributions - please help us in welcoming him!

Primarily, this has been a bug fix and optimization release. We landed over 120 bug fixes and our test suite now has over 1157 tests in it - which we are quire proud of.

300% Speed Improvements to $(DOMElement)

Once again, we’ve taken a step at micro-improving the most-used features in jQuery. Specifically, the use of passing a DOM element into the jQuery function. (Most frequently used when you see stuff like $(this) in your code.)

Here’s a quick peak at some of the speed jumps that you can expect in all the major browsers:

Browser	1.2.1 (ms)	1.2.2 (ms)
Firefox 2	0.041	0.015
Firefox 3	0.033	0.01
Safari 3	0.017	0.005
Opera 9	0.023	0.004
Internet Explorer 6	0.04	0.03

.ready() Overhaul

The document ready function has been long due for some extra love. We’ve made a number of specific changes.

* Internet Explorer document ready drastically improved. We use a new technique inspired by Diego Perini. It allows us to not have to do a document.write() anymore, which is really fantastic.
* All browsers now wait for CSS to be ready, in addition to just the DOM. In reality, it’s not just a vanilla document ready anymore - but we found that users, overwhelmingly, needed to wait for document styling to be active (such as knowing if an element is visible, or what its height is). Specifically we’ve added improvements to Safari and Opera to make this possible.
* $(document).bind("ready", fn); - You can now watch for the document ready event via the traditional .bind() function. Of course, .ready() still works as you would expect it to.

.bind(”mouseenter”) / .bind(”mouseleave”)

The functionality that was the core of the .hover() function has been split out into two new cross-browser events: mouseenter and mouseleave. These are different from mouseover and mouseout as those events will fire as you move in and out of child elements (which is generally not desired). For example, the following are both valid and work perfectly in jQuery 1.2.2:

$("li").hover(function(){
  $(this).addClass("hover");
}, function(){
  $(this).removeClass("hover");
});

$("li").bind("mouseenter", function(){
  $(this).addClass("hover");
}).bind("mouseleave", function(){
  $(this).removeClass("hover");
});

.bind(”mousewheel”)

We have a new plugin, written by Brandon Aaron, based on the new Event API which adds mousewheel event support to jQuery core. This will allow you to write things like:

$("div").bind("mousewheel", function(event, delta){
  if ( delta < 0 )
    $(this).append("up");
  else
    $(this).append("down");
});

Complex :not()

Even though it’s not part of the CSS 3 specification it’s been a common feature request - so you can now do complex expressions in your :not() selectors. For example, the following now work:

$(".hover:not(li.active)")

$("li:not(.active,.hover,:contains(test))")

Accept Headers

For normal jQuery Ajax operations we now send an extra Accept header to let the server know what kind of content we’re looking for. If you specify a dataType argument then we’ll take care of all the header setting for you. We currently send the following headers for each dataType.

xml “application/xml, text/xml”
html “text/html”
script “text/javascript, application/javascript”
json “application/json, text/javascript”
text “text/plain”
Everything else: “*/*”

Bug Fixes

Here’s a sampling of some of the functionality that’s seen some important overhauling.

* .clone() overhaul
* Script evaluation overhaul
* height() / width() overhaul
* Cross-frame DOM manipulation
* A few memory leaks have been resolved

Event API

There’s a new API for dealing with events. You can now create your own custom event types (with custom ways of being set up and torn down). Effectively, it allows you to go beyond simple event triggering and create a full scheme for attaching, handling, and tearing down events on an element. A demonstration plugin was created by Brandon Aaron that you can use to learn the powerful new API.

Riddle Says:
January 15th, 2008 at 1:33 am

Wooohoo! Fantastic changelog, thank you jQuery team, happy birthday! This library relieves me on a daily basis from nearly all JS pain I used to have. Keep rockin’!

Torsten Says:
January 15th, 2008 at 1:45 am

Great news!

Thanks for all your hard work!

Antonio.Reset Says:
January 15th, 2008 at 1:56 am

Wow, great!
I think it’s time to get to work with some new projects using jQuery!

Thank you guys!

Chris Says:
January 15th, 2008 at 2:11 am

Sweet! Lots of good stuff in this release. Thanks for all your hard work.

Happy Birthday!

Marco Gomes Says:
January 15th, 2008 at 2:28 am

The new Event API and speed improvements to $() are both very good news. We were waiting for a even faster elm selector, now we got that.

from Brazil, Marco Gomes

jQuery 1.2.2 ha visto la luz | aNieto2K Says:
January 15th, 2008 at 3:23 am

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dom Says:
January 15th, 2008 at 3:24 am

Happy Birthday and thank you all for your excellent work.
Special welcome to David Serduke!

Thasmo Says:
January 15th, 2008 at 4:03 am

Really, really very nice, waited for a cool new update!
Thanks to all of you, great work! =o)

Romz Says:
January 15th, 2008 at 4:09 am

Awesome !!!!!!
What a great job guys !
Congratulations and welcome to David

Romz : Belgium

paul Says:
January 15th, 2008 at 4:17 am

Can the DOM element passing also gain speed in IE7 (not a major browser?)?

Isn’t birthday donation day

jQuery 1.2.2 发布 at catch the digital flow | 北极冰仔部落格 Says:
January 15th, 2008 at 4:18 am

[…] (via jQuery Blog) […]

firman Says:
January 15th, 2008 at 4:20 am

faster and still 29kb. woo hoo.

Michaël Says:
January 15th, 2008 at 4:39 am

Wow, each of your ‘bug fix release’ is always full of new features, not only fixes!
Thanks a lot for this amazing work! Happy Birthday jQuery!

BillyChow Says:
January 15th, 2008 at 4:42 am

Oh yeah…
Less bug and more speed.
Happy birthday!

Vlad Says:
January 15th, 2008 at 5:11 am

I waiting for this news!

Go to updating my site’s ))

Bram.us » jQuery 1.2.2 Released Says:
January 15th, 2008 at 5:17 am

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Ivan Says:
January 15th, 2008 at 5:23 am

Yead….very yellow,very powerful…

Felipe Diesel Says:
January 15th, 2008 at 5:38 am

Great news. Keep going this way…

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January 15th, 2008 at 5:44 am

[…] John Resig acaba de anunciar en el blog de desarrolladores la salida de la versión 1.2.2, en el marco de la conmemoración del segundo aniversario del primer lanzamiento de una de las librerías mas utilizada en la actualizada. […]

Bohdan Ganicky Says:
January 15th, 2008 at 5:48 am

Clap, clap again. I think this is good time to add “paypal subscribe” button next to the “donate” one. Instead of $10 from time to time, $10 every month. jQuery really deserves it, doesn’t it?

Tane Piper Says:
January 15th, 2008 at 6:06 am

Hooray! Another great release, and it looks like another winner John, between working on FF3, jQuery and Writing books I don’t know where you get the time Congrats to the whole jQuery core team too

Snowcore Says:
January 15th, 2008 at 6:45 am

jQuery is the best!!!!

But in new version I often have an error: “handler is not defined”

Happy Birthday jQuery! Version 1.2.2 released « Rip’s Domain Says:
January 15th, 2008 at 8:13 am

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dc crowley Says:
January 15th, 2008 at 8:24 am

thanks guys… jQuery really works for me. Really appreciated and howdie to David Serduke. Thanks for joining up

博课 Says:
January 15th, 2008 at 8:35 am

jQuery 1.22 发布

1月14日是jQuery

pcdinh Says:
January 15th, 2008 at 9:31 am

Thanks for your hard work

b_b Says:
January 15th, 2008 at 9:41 am

Happy birthday and thaks a lot !

We have published a french translation of this post on the french jQuery website :

http://www.jquery.info/Joyeux-anniversaire-jQuery

Matt Ellsworth Says:
January 15th, 2008 at 10:01 am

Happy Birthday and thanks for the update!

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January 15th, 2008 at 10:32 am

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Loïc Hoguin Says:
January 15th, 2008 at 10:49 am

Happy birthday, thanks for everything you have given us!

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Fusioncube » Blog Archive » jQuery 1.2.2 Released Says:
January 15th, 2008 at 2:27 pm

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Ernest Leitch Says:
January 15th, 2008 at 4:23 pm

Thanks for continuing to work on the best javascript toolkit out there.
I’ve been using it for awhile and it just keeps getting better.
It’s helped me reduce so much js code. I’m still on the tip of an iceberg when it comes to knowing all this can do.

I’ll wait for 1.2.2.1 for any small “opps” bug fixes before I roll it out.

Patrick Wolf Says:
January 15th, 2008 at 4:46 pm

Great work!

Patrick

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jquery.com…

Brian Says:
January 15th, 2008 at 6:07 pm

I love you man!!! You just saved me from hours of IE JavaScript debugging HELL! Thanks so, so much. The jQuery team is top notch!

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January 15th, 2008 at 6:21 pm

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Renato Carvalho Says:
January 15th, 2008 at 8:16 pm

Oh! Thanks again!!!

Congratulations to entire jQuery team and Happy Birthday

batosai Says:
January 15th, 2008 at 8:32 pm

really nice demo

sunsean Says:
January 15th, 2008 at 9:52 pm

Excellent additions, I will enjoy this new level of freedom. Thank you

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January 15th, 2008 at 10:42 pm

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January 15th, 2008 at 11:34 pm

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jQuery 1.2.2 » Code Candies Says:
January 16th, 2008 at 4:01 am

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January 16th, 2008 at 7:43 am

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Yereth Says:
January 16th, 2008 at 10:43 am

But the getJSON callback is broken when using absolute URLs on local calls.

For a fix, get this:
http://www.yereth.nl/js/jquery-1.2.2-yereth.js

For discussing it, go here:
http://groups.google.com/group/jquery-dev/t/62a4f75f62a1737f

Otherwise: great work once again! jquery’s my personal jesus.

David Esperalta Says:
January 16th, 2008 at 5:41 pm

Nueva versión de la librería jQuery

No dejo de hablar de jQuery, pero, acabo de percatarme de que han publicado una nueva versión. En la

Simon Coulton Says:
January 16th, 2008 at 5:50 pm

Awesome work guys, donation incoming

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George Says:
January 21st, 2008 at 3:21 pm

Seems to me new update has a problem with timer. following code http://interface.eyecon.ro/demos/sort.html stopped working with new JQuery. It works initially but after moving same panel couple of times it becomes unmovable.

Joel Says:
January 22nd, 2008 at 9:12 am

http://mootools.net/slickspeed/

Hmm … they should get the new version, but jquery definitely is not showing up as the fastest here. Any particular reason?

Jonatan Moleiro Says:
January 22nd, 2008 at 10:13 am

Hi, i cant found a printable documentation of the 1.2.x version of jQuery. This is very usefull for a fast reference. Also y try to build one but i cant found a updated jquery-docs-xml.xml

There’s a plan to update o release a print friendly version?

Thanks for you work and this awesome library

Jonatan

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Alec Munro Says:
January 22nd, 2008 at 7:44 pm

Wow!

Our main use of JQuery(a test results application) is now 2.5X faster when building result pages (which is basically all it does). Awesome.

Thanks very much for your work on this, and I look forward to seeing it progress.

ethodaddy Says:
January 23rd, 2008 at 5:51 am

hey guys, great job and thanks for all the work you have done with jquery. I have found that some plugins stop working with this release an example being Sam Collett’s Select box manipulation. all seems fine but the addAjaxOption doesn’t work. I’m working on fixing the issue and will report a bug if need be.

thanks again for the great job on this release….

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January 25th, 2008 at 5:33 am

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January 26th, 2008 at 4:34 pm

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Hamid Says:
February 7th, 2008 at 2:12 pm

Great job!
thank you all for your excellent work.
i will work on it…

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Kazelmzl Says:
May 24th, 2008 at 7:22 am

Hi webmaster!

Kazelwgv Says:
May 24th, 2008 at 7:48 am

Kazelhrh Says:
May 24th, 2008 at 7:48 am